涂裝線廢氣處理可以采用哪些方法？
來源：http://hongnizn.cn/ 發(fā)布時(shí)間：2023-06-05
1.涂裝線廢氣處理方法：冷凝回收法
1. Coating line exhaust gas treatment method: condensation recovery method
將廢氣直接冷凝或吸附濃縮后冷凝，冷凝液經(jīng)分離回收有價(jià)值的有機(jī)物。該法用于濃度高、溫度低、風(fēng)量小的廢氣處理。但此法投資大、能耗高、運(yùn)行費(fèi)用大，因此無特殊需要，一般不采用此法。
The waste gas is directly condensed or adsorbed and concentrated before condensation, and the condensate is separated to recover valuable organic matter. This method is used for the treatment of waste gas with high concentration, low temperature, and low air volume. However, this method has high investment, energy consumption, and operating costs, so there is no special need and it is generally not used.
2.涂裝線廢氣處理方法：吸收法
2. Coating line exhaust gas treatment method: absorption method
可分為化學(xué)吸收和物理吸收，但“三苯”廢氣化學(xué)活性低，一般不采用化學(xué)吸收。物理吸收是選用具有較小的揮發(fā)性的液體吸收劑，它與被吸收組分有較高的親和力，吸收飽和后經(jīng)加熱解析冷卻后重新使用。
It can be divided into chemical absorption and physical absorption, but the chemical activity of "triphenyl" waste gas is low, and chemical absorption is generally not used. Physical absorption refers to the use of liquid absorbents with relatively low volatility, which have a high affinity with the absorbed components. After saturation, they are heated, analyzed, and cooled before reuse.
該法用于大氣量、溫度低、濃度低的噴漆房廢氣處理。裝置復(fù)雜、投資大，吸收液的選用比較困難，存在二次污染。
This method is used for the treatment of exhaust gas from spray painting rooms with low atmospheric volume, temperature, and concentration. The device is complex and requires a large investment, making it difficult to select the absorption liquid, resulting in secondary pollution.
3.涂裝線廢氣處理方法：直接燃燒法
3. Coating line exhaust gas treatment method: direct combustion method
利用燃?xì)饣蛉加偷容o助燃料燃燒放出的熱量將混合氣體加熱到一定溫度（700—800℃），駐留一定的時(shí)間，使可燃的有害氣體燃燒。該法工藝簡(jiǎn)單、設(shè)備投資少，但能耗大、運(yùn)行成本高。
Heat the mixed gas to a certain temperature (700-800 ℃) using the heat released from auxiliary fuel combustion such as gas or fuel oil, and stay for a certain period of time to ignite combustible and harmful gases. This method has simple process, low equipment investment, but high energy consumption and operating costs.
4.涂裝線廢氣處理方法：催化燃燒法
4. Coating line exhaust gas treatment method: catalytic combustion method
將廢氣加熱到200～300℃經(jīng)過催化床燃燒，達(dá)到凈化目的。該法能耗低、凈化率高、無二次污染、工藝簡(jiǎn)單操作方便。適用于高溫高濃度的涂裝線設(shè)備有機(jī)廢氣治理，不適用于低濃度、大風(fēng)量的有機(jī)廢氣治理。
Heat the exhaust gas to 200-300 ℃ and burn it in a catalytic bed to achieve purification. This method has low energy consumption, high purification rate, no secondary pollution, and is simple and easy to operate. Suitable for organic waste gas treatment of high-temperature and high concentration coating line equipment, not suitable for organic waste gas treatment of low concentration and high air volume.
5.涂裝線廢氣處理方法：吸附法
5. Coating line exhaust gas treatment method: adsorption method
（1）直接吸附法：有機(jī)氣體直接通過活性炭，可達(dá)到
(1) Direct adsorption method: Organic gases can be directly adsorbed through activated carbon to achieve
95%的凈化率，設(shè)備簡(jiǎn)單、投資小、操作方便，但需經(jīng)常更換活性炭，用于濃度低、污染物不需回收的涂裝線設(shè)備。
95% purification rate, simple equipment, low investment, and easy operation, but frequent replacement of activated carbon is required for coating line equipment with low concentration and no need for recycling of pollutants.
（2）吸附回收法：有機(jī)氣體經(jīng)活性炭吸附，活性炭飽和后用熱空氣進(jìn)行脫附再生。
(2) Adsorption and recovery method: Organic gases are adsorbed by activated carbon, and after the activated carbon is saturated, hot air is used for desorption and regeneration.
6．涂裝線 廢氣處理 方法：過濾水洗法
6. Waste gas treatment method for coating line: filtered water washing method
將車間產(chǎn)生的漆霧通過風(fēng)機(jī)的負(fù)壓值，引至過濾器，過濾器中裝有多個(gè)螺旋噴頭，并掛了多個(gè)濕簾進(jìn)行這濾。
The paint mist generated in the workshop is directed to the filter through the negative pressure value of the fan, which is equipped with multiple spiral nozzles and hung with multiple wet curtains for filtration.
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